SIT3373AI-4B2-28NB245.760000

Oscillators Overview

The SIT3373AI-4B2-28NB245.760000 is a Silicon MEMS Voltage-Controlled Crystal Oscillator (VCXO) manufactured by SiTime. It operates at a nominal frequency of 245.76 MHz with a supply voltage of 2.8V. The device utilizes HCSL output signaling and features a frequency stability of ±25 ppm across the industrial temperature range of -40°C to +85°C. It is housed in a compact 6-pin Surface Mount Device package, specifically SMD3225, designed for low-noise applications requiring precise clock generation.

Oscillators Feature Summary

• Utilizes silicon MEMS technology for enhanced reliability compared to traditional quartz oscillators
• Provides voltage-controlled frequency adjustment capabilities suitable for phase-locked loop integration
• Delivers low-jitter performance optimized for high-reliability system synchronization

Oscillators Applications

• High-speed data communication interfaces requiring precise clock recovery
• Network synchronization equipment needing stable frequency references
• Industrial control systems operating within extended temperature ranges

Oscillators Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required output formats and tolerance levels. Confirm that the 2.8V supply requirement aligns with the target system power rails. Check for any recent revisions to the pinout or thermal specifications before finalizing the bill of materials. Ensure the selected variant matches the exact frequency and stability requirements of the design.

Oscillators Selection Notes

Select this component when a programmable VCXO with MEMS reliability is required for frequencies around 245 MHz. Consider the HCSL output interface for compatibility with downstream logic families. Evaluate the ±25 ppm stability against system jitter budgets. The 6-pin SMD3225 package offers a balance between size and thermal performance for dense PCB layouts.

Oscillators Part Context

This part belongs to the SiTime SIT3373 series of ultra-low jitter differential VCXOs. The series leverages SiTime's proprietary MEMS manufacturing process to replace traditional quartz components. These devices are designed for applications demanding high performance, small form factors, and robustness against shock and vibration, distinguishing them from standard crystal oscillators.

Oscillators Replacement Considerations

Direct cross-replacement with other manufacturers' parts may require significant circuit redesign due to differences in drive strength, output swing, and tuning voltage characteristics. Verify electrical compatibility carefully if substituting with generic VCXO models.